Brian May has seen 15 bands.

Band Concerts Seen
  Aerosmith 2 concerts
  Axes 1 concert
  Biohazard 1 concert
  Blue Öyster Cult 1 concert
  Boston 1 concert
  Cheap Trick 1 concert
  Deep Purple 1 concert
  Kiss all original 1 concert
  Loverboy 1 concert
  Man o war 1 concert
  Poison 1 concert
  Ted Nugent 1 concert
  Tesla 1 concert
  Whitesnake 1 concert
  ZZtop 1 concert